In this lesson, we will learn how to decide if a number up to 20 is odd or even by seeing if we can make two equal groups without one left over.
Is 13 even or odd?
A number is even if we can split it into groups of two with nothing left over.
These 8 squares can be split into 4 groups of 2 squares. So, 8 is even.
Which of the following numbers is even?
Is 8 even or odd?
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